Will I meet my dog in the afterlife?

At first, forgive me my English, I try my best to make it understable. I'm 19 years old and I have my soul dog. He'll be 15 years old in one month. I took him from the shelter a year and half ago. I couldn't feel the bond with any of the dogs, but then he came to me and looked in my eyes. He was freely walking there, because he have a strong separation anxiety. I didn't need to make a decision, because when we saw each other I felt imidiatelly that he's my life purpose, my beloved companion, and we are made to save each other because I was in really bad condition, straight out of mental hospital. My dog was taken to shelter after his two elderly owners died. He was with them for 13 years. He lived in other city, but somehow was placed in mine. I took him home and we live together giving each other the strongest support and love. From the early years of my live I have imagined literally him as my best friend and some sort of sibling or family member I trusted, which I didn't had.

I don't really have anyone I trust, I can bond with, because I'm not a "people person". My dog is all I have, and I am experiencing the unhealthy kind of love, living with the thought that I will tear apart, completly lose myself when it would be his time. I considered or consider ending my life when this would happen in the I hope long long time.

I want to say that I'm not so religious person. I want to be so much, but my mind tells me there's nothing I can experience after death. The thing I'm scared of the most, is that I will not meet my dog when I die. I'm scared of the thoughts that after life may not exist, If I'll end my life to be with him the God or universe decide that I have not "completed" my soul and I won't be able to meet him. I'm also very very scared of the though that he will not meet me, but his previous owners. I know they were very lovely and amazing people. I had the chance to text with their daughter, and she told me that her parents loved my and their dog so much, he were their meaning of life.

The thing I really want is to experience forever with my beloved, soul dog, and the very very first one in my life. I know there is a chance that I'll commit in some years not being able to handle this, and that makes me so scared. I really, really want to be sure that I would meet him. I don't want anyhing else.

I'm desperate to see yours thoughts on this situation, I'll try my best to take to my heart every comment. Please share your own experiences.